Title:
【発明の名称】グレーデッドインデックスポリマー光ファイバーの製造方法
Document Type and Number:
Japanese Patent JP2000501196
Kind Code:
A
Abstract:
Disclosed is a method of making a graded index polymer optical fibre comprising a multicomponent spinning process employing spinning masses comprising a core spinning mass and a sheath spinning mass, the spinning masses comprising a polymer, a polymerizable monomer, and an initiator. The monomer in the core spinning mass has a higher refractive index than the monomer in the sheath spinning mass, and the spinning masses are extruded and cured. The spinning conditions are chosen such that the monomers are substantially contained within the fibre during extrusion and curing and the total of the spinning masses is intrinsically thread forming. The spinning masses may be extruded in, e.g., water. The core and the sheath polymer may be, e.g., poly(methyl methacrylate); the core monomer may be methyl methacrylate, and the sheath monomer may be 2,2,3,3-tetrafluoropropyl methacrylate; or the core and the sheath polymer may be, e.g., poly(styrene-co-acrylonitrile); the core monomer may be benzyl methacrylate, and the sheath monomer may be methyl methacrylate. The spinning masses are solutions of the polymer in the monomer having a polymer concentration of from 20 to 70 % by weight.
Inventors:
Klins, Bastien
Brinkuis, Richard, Hendricus, Gerrit
Brinkuis, Richard, Hendricus, Gerrit
Application Number:
JP52019997A
Publication Date:
February 02, 2000
Filing Date:
November 28, 1996
Export Citation:
Assignee:
Akzo Nobel NAMROSE FENNOTE SHAP
International Classes:
B29D11/00; D01D5/08; G02B6/00; D01F8/06; D01F8/10; G02B6/028; B29C48/00; B29C48/05; (IPC1-7): G02B6/18; G02B6/00; D01F8/06; D01D5/08
Attorney, Agent or Firm:
Mitsuo Matsui